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Aquarium Visit: Tenths and Hundredths as Decimals worksheet preview

Worksheet

Aquarium Visit: Tenths and Hundredths as Decimals

Grade 4 aquarium-themed practice writing fractions with denominators 10 and 100 as decimals, and decimals as fractions.

Grade 4MathInteractive · Printable

Aligned to4.NF.C.6

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 13 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 4
Subject
Math
Question types
Fill in the blank, Multiple choice, Matching, Sorting, Short answer

About this worksheet

What students practice

  • Students write fractions with denominators 10 and 100 as decimals.
  • Students write tenths and hundredths decimals as fractions.
  • Students read decimals from fraction bars and number lines.

How to use

Use after introducing tenths and hundredths. Let students use a place value chart for the first section, then have them explain their thinking on the last page.

Curriculum

Common Core standard covered

4.NF.C.6

Write fractions with denominators 10 or 100 as decimals.

Preview

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Name Date

Aquarium Visit: Tenths and Hundredths as Decimals

Write fractions with denominators 10 and 100 as decimals.

Tenths at the tanks

Write each fraction as a decimal, or fill in the missing number.

1.
A baby sea turtle is 3/10 meter long.

3/10 =   meter

2.
Mr. Ortiz is cleaning the 10 equal panels of the big window. The shaded panels are clean.

The clean part of the window as a decimal:  

3.
Rocks and plants fill 0.4 of the octopus tank.

0.4 =  /10

4.
The number line from 0 to 1 is split into 10 equal parts. The dot shows how many miles the class walked along the harbor path to the aquarium.01

The class walked   mile.

5.
The dolphin pool is 3 and 8/10 meters deep. Write the depth as a decimal.

3 8/10 =   meters

Hundredths at the touch pool

Use what you know about hundredths to answer each question.

6.
A sea star in the touch pool is 25/100 meter across.

25/100 =   meter

7.
A young seahorse grew 6/100 inch in one week. Which decimal is equal to 6/100?
  • A. 0.6
  • B. 6.0
  • C. 0.06
8.
Ana's scoop of fish food weighs 0.83 ounce.

0.83 =  /100

9.
A postcard at the aquarium shop costs 75/100 of a dollar. Write the cost as a decimal.

$ 

10.
Each fish tag shows a fraction. Match each fraction to its decimal.
  1. 4/100
  2. 14/100
  3. 41/100
  4. 4/10
  1. A. 0.4
  2. B. 0.41
  3. C. 0.04
  4. D. 0.14

Think like a scientist

Sort, choose, and explain.

11.
The jellyfish tank is 0.3 full of water. Sort each number: is it equal to 0.3 or not?
3/103/10030/1000.030.3013/100
Equal to 0.3Not equal to 0.3
12.
Ravi says 0.7 and 0.07 are the same number because both have a 7. Which statement is true?
  • A. Ravi is right. The two numbers are equal.
  • B. They are not equal. 0.7 is 7 tenths and 0.07 is 7 hundredths.
  • C. They are not equal. 0.07 is greater because it has more digits.
13.
A clownfish is 0.09 meter long. Write 0.09 as a fraction. Explain how you know.

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